干旱地区农业研究2001，Vol.19Issue(1)：108-114,7.
山西旱地农业高效持续发展模式研究
Sustainable development models for dryland agriculture in Shanxi
摘要
Abstract
Dryland agriculture plays an important role in developing Shanxilocal economy. Three kinds of sustainable development models for dryland agriculture in Shanxi were established based on resource characteristics of dryland regions. (1) Cycling model of combining farming with raising animals: Land productivity increases by 49.7% compared with sole maize production system; Lamb gross weight with additive increase 11.3 kg after 115 days, 14% more than traditional management. Output of grass in slope is 12 000 kg/hm2～14 400 kg/hm2. (2) Model of sweet potato production-processing-raising animals: Sweet potato yield is more than 75 000 kg/ hm2, the cost of starch film is 27.9% lower than PVC film. Two kinds of sweet potato products with special taste has been produced, the value of starch noodles is 10 times as yaw sweet potato. (3) Eco-orchard with double-way controlling soil water: Compared with cleared orchard, soil water in 0 cm～60 cm depth in eco-orchard increases by 3.1%, organic matter content in 0 cm～40 cm soil profile increases by 0.17% and exchange potassium by 9.1 mg/100g soil. After 4-yr, the soil density decrease 0.20 g/cm3, the number of natural enemies increases by 3 times, pests decrease 95% and, fruit diseases decrease by 80%. Yield of first grade fruit was 27 000 kg/hm2, net income increased by 1 338 yuan/hm2.关键词
旱地农业/加工/果树/甘薯/草坡/黑麦分类
农业科技引用本文复制引用
李振吾,籍增顺..山西旱地农业高效持续发展模式研究[J].干旱地区农业研究,2001,19(1):108-114,7.基金项目
山西省科委资助项目“山西旱地农业高效可持续发展研究”的部分内容 （）
